About: http://webisa.webdatacommons.org/174484151

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	If existence is a property of things, it is a rather peculiar one: you can find a blue marble, and also a non-blue marble (a red one, say), but you cannot find a nonexistent marble???a marble that lacks the property of existing.
http://www.w3.org/ns/prov#wasQuotedFrom	bostonreview.net